Chapter 4: Of Tests and Testing

A test is considered "standardized" if the test includes:
1. clearly specified procedures for administration
2. clearly specified procedures for scoring
3. normative data
4. all are correct
Which of the following is always true of a sample in the statistical sense? The sample:
1. can never be greater in number than the population from which it is drawn
2. will have a standard deviation that approximates the average deviation of the population
3. is frequently distributed normally
4. is frequently distributed gratuitously at Sam's Club and other chain stores
The type of sample that is convenient or available for use is referred to as:
1. an incidental sample
2. a stratified sample
3. a coincidental sample
4. a random sample
Using college students enrolled in Introductory Psychology as research participants is frequently an example of:
1. a stratified sample
2. a coincidental sample
3. an incidental sample
4. a random sample
Sampling all different subgroups within a population is an example of:
1. random sampling
2. stratified sampling
3. incidental sampling
4. purposive sampling
Deciles divide a distribution into ________ equal parts.
1. five
2. ten
3. one hundred
4. none are correct
Percentiles divide a distribution into ____________ equal parts.
1. five
2. ten
3. one thousand
4. one hundred
The 20th percentile represents:
1. the score at or below which 80% of the scores in the distribution fall
2. that the examinee correctly answered 80% of the questions on the test
3. the score at or below which 20% of the scores in the distribution fall
4. that the examinees correctly answered 20% of the questions on the test
The actual raw score difference between the 50th and 55th percentiles compared with the 90th and 95th percentiles is likely to be:
1. the same
2. larger
3. smaller
4. cannot determine
Age norms are synonymous with:
1. age-equivalent scores
2. age-derived scores
3. standard scores
4. none are correct
Which of the following is true of age norms? Age norms enjoy wide acceptance:
1. for both physical and psychological characteristics
2. for physical, but not psychological characteristics
3. psychological, but not physical characteristics
4. in the teen years, but decline in popularity with age
Which of the following would be true for a 3rd grade student who earned a grade-equivalent score of 5.0 on a standardized math test?
1. she has the same mathematics ability as the average 5th grade student in her school
2. she should be enrolled in a 5th grade math class
3. she performed similarly to a hypothetical 5th grade student
4. none are correct
A perfect correlation would be indicated by:
1. + 1.00
2. - 1.00
3. 0.00
4. + 1.00 or - 1.00
A correlation coefficient equal to -.98 would indicate:
1. a weak inverse relationship between the two variables
2. a weak direct relationship between the two variables
3. a strong inverse relationship between the two variables
4. a strong direct relationship between the two variables
If the correlation coefficient is equal to .30, the coefficient of determination is equal to:
1. the sum of the deviations about the mean squared
2. .30
3. the square root of 3%
4. none are correct
What is the relationship between the coefficient of determination and the correlation coefficient?
1. the larger the correlation coefficient, the larger the coefficient of determination
2. the larger the correlation coefficient, the smaller the coefficient of determination
3. the coefficient of determination is used to determine the coefficient of correlation
4. the larger the correlation coefficient, the more variance can be attributed to error or chance
The correlation coefficient that is frequently used when both sets of measurements are in rank-order form and when fewer than 30 pairs of measurements are involved is called:
1. the Pearson r
2. the tetrchoric r
3. the Spearman rho
4. the ROTC
The statistical combination of information across studies is referred to as:
1. simple regression
2. meta-analysis
3. regression
4. incremental validity
If the computed value of the correlation coefficient for two variables, X and Y, is zero, what would the resulting scatterplot look like?
1. upward, sloping to the left
2. downward, sloping to the right
3. upward, sloping to the right
4. none are correct
Which of the following is true of multiple regression? Multiple regression:
1. always involves one IV and two or more DVs
2. always involves one DV and two or more IVs
3. is a technique that consistently will contain more error than simple regression
4. is a technique that consistently will yield two or more regression lines
Which of the following is NOT one of the recommended sampling techniques used to obtain a standardization sample?
1. volunteer sampling
2. stratified sampling
3. purposive sampling
4. all are recommended
Raw scores may be converted to norms:
1. so that the scores are more easily interpreted and communicated to others
2. so that scores from members of different groups may be evaluated fairly
3. all of the above
4. none are correct
Among school aged children, as age increases, so do reading skills. This is an example of:
1. a negative correlation
2. a positive correlation
3. a zero correlation
4. cannot determine based on the information presented
National anchor norms allow for comparisons between:
1. several students taking the same test
2. one student and a national sample of others taking the same test
3. a student's scores on a battery of tests as compared to a national sample who took the same battery
4. a high school senior and graduates of the U.S. Naval Academy at Annapolis
Francis Galton conducted research that led to the development of the concept of correlation. What human characteristic was Galton studying?
1. height
2. weight
3. color perception
4. endurance

Chapter 4: Of Tests and Testing

Choose the correct answer for each question.